US10429756B2ActiveUtilityA1
Toner, developer, process cartridge, image forming apparatus, image forming method, and method for manufacturing toner
Est. expiryJun 20, 2037(~11 yrs left)· nominal 20-yr term from priority
Inventors:Kazuoki FuwaHiroshi YamashitaYuka MizoguchiShizuka HashidaToma TakebayashiJunko YamaguchiMaia KameiKeisuke Ohta
G03G 9/0902G03G 9/0926G03G 9/0924G03G 9/0912G03G 2215/0604G03G 9/0906G03G 15/08
78
PatentIndex Score
2
Cited by
18
References
10
Claims
Abstract
A toner is provided. The toner comprises a glittering pigment and a coloring pigment. The glittering pigment is disposed inside the toner. The coloring pigment comprises a yellow pigment comprising an isoindoline pigment.
Claims
exact text as granted — not AI-modifiedThe invention claimed is:
1. A toner comprising:
a glittering pigment disposed inside the toner; and
a coloring pigment comprising a yellow pigment comprising an isoindoline pigment,
wherein a content of the coloring pigment is from 10 to 35 parts by weight based on 100 parts by weight of the glittering pigment.
2. The toner of claim 1 , wherein the isoindoline pigment comprises C.I. Pigment Yellow 185.
3. The toner of claim 1 , wherein the coloring pigment further comprises a magenta pigment.
4. A developer comprising the toner of claim 1 .
5. A process cartridge detachably mountable on an image forming apparatus, comprising:
a photoconductor; and
a developing device containing the developer of claim 4 , configured to develop an electrostatic latent image on the photoconductor with the developer.
6. An image forming apparatus comprising:
a photoconductor;
an electrostatic latent image forming device configured to form an electrostatic latent image on the photoconductor;
a developing device containing the developer of claim 4 , configured to develop the electrostatic latent image on the photoconductor with the developer to form a toner image;
a transfer device configured to transfer the toner image onto a recording medium; and
a fixing device configured to fix the transferred toner image on the recording medium.
7. An image forming method comprising:
forming an electrostatic latent image on a photoconductor;
developing the electrostatic latent image with the developer of claim 4 to form a toner image;
transferring the toner image onto a recording medium; and
fixing the transferred toner image on the recording medium.
8. A toner comprising:
glittering pigment particles; and
coloring pigment particles,
wherein 80% or more of the coloring pigment particles are disposed at a position A and 75% or more of the glittering pigment particles are disposed at a position B,
wherein the position A and the position B are on a line connecting a center of gravity of the toner as a start point to a surface of the toner as an end point via a center of gravity of each of the coloring pigment particles and glittering pigment particles, and a distance from the start point to the position A is 0.6 times or more a total distance between the start point and the end point and a distance from the start point to the position B is less than 0.6 times the total distance.
9. The toner according to claim 8 , wherein the isoindoline pigment comprises C.I. Pigment Yellow 185.
10. A method for manufacturing toner, comprising:
dispersing an organic liquid, comprising a glittering pigment and a coloring pigment, in an aqueous medium to form an oil-in-water (O/W) emulsion,
wherein the coloring pigment comprises a yellow pigment comprising an isoindoline pigment,
and wherein a content of the coloring pigment is from 10 to 35 parts by weight based on 100 parts by weight of the glittering pigment.Cited by (0)
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